Create a collection and back up the folder if a user attempts to share a folder that is not backed up

lib/core/configuration.dart

@@ -144,7 +144,7 @@ class Configuration {
     // return _preferences.getBool(hasOptedForE2EKey);
   }
 
-  Set<String> getFoldersToBackUp() {
+  Set<String> getPathsToBackUp() {
     if (_preferences.containsKey(foldersToBackUpKey)) {
       return _preferences.getStringList(foldersToBackUpKey).toSet();
     } else {
@@ -158,10 +158,16 @@ class Configuration {
     }
   }
 
-  Future<void> setFoldersToBackUp(Set<String> folders) async {
+  Future<void> setPathsToBackUp(Set<String> folders) async {
     await _preferences.setStringList(foldersToBackUpKey, folders.toList());
   }
 
+  Future<void> addPathToFoldersToBeBackedUp(String path) async {
+    final currentPaths = getPathsToBackUp();
+    currentPaths.add(path);
+    return setPathsToBackUp(currentPaths);
+  }
+
   Future<void> setKeyAttributes(KeyAttributes attributes) async {
     await _preferences.setString(
         keyAttributesKey, attributes == null ? null : attributes.toJson());

lib/services/sync_service.dart

@@ -184,7 +184,7 @@ class SyncService {
   }
 
   Future<void> _uploadDiff() async {
-    final foldersToBackUp = Configuration.instance.getFoldersToBackUp();
+    final foldersToBackUp = Configuration.instance.getPathsToBackUp();
     List<File> filesToBeUploaded =
         await _db.getFilesToBeUploadedWithinFolders(foldersToBackUp);
     for (int i = 0; i < filesToBeUploaded.length; i++) {

lib/ui/settings_page.dart

@@ -169,7 +169,7 @@ class _BackedUpFoldersWidgetState extends State<BackedUpFoldersWidget> {
           snapshot.data.sort((first, second) {
             return first.toLowerCase().compareTo(second.toLowerCase());
           });
-          final backedUpFolders = Configuration.instance.getFoldersToBackUp();
+          final backedUpFolders = Configuration.instance.getPathsToBackUp();
           final foldersWidget = List<Row>();
           for (final folder in snapshot.data) {
             foldersWidget.add(Row(children: [
@@ -182,7 +182,7 @@ class _BackedUpFoldersWidgetState extends State<BackedUpFoldersWidget> {
                     backedUpFolders.remove(folder);
                   }
                   await Configuration.instance
-                      .setFoldersToBackUp(backedUpFolders);
+                      .setPathsToBackUp(backedUpFolders);
                   setState(() {});
                 },
               ),

lib/ui/share_folder_widget.dart

@@ -1,10 +1,13 @@
 import 'dart:developer';
+import 'dart:html';
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
+import 'package:photos/core/configuration.dart';
 import 'package:photos/models/collection.dart';
 import 'package:photos/services/collections_service.dart';
+import 'package:photos/services/sync_service.dart';
 import 'package:photos/services/user_service.dart';
 import 'package:photos/ui/common_elements.dart';
 import 'package:photos/ui/loading_widget.dart';
@@ -38,7 +41,7 @@ class _ShareFolderWidgetState extends State<ShareFolderWidget> {
           : CollectionsService.instance.getSharees(widget.collection.id),
       builder: (context, snapshot) {
         if (snapshot.hasData) {
-          return SharingDialog(widget.collection, snapshot.data);
+          return SharingDialog(widget.collection, snapshot.data, widget.path);
         } else if (snapshot.hasError) {
           return Text(snapshot.error.toString());
         } else {
@@ -52,8 +55,10 @@ class _ShareFolderWidgetState extends State<ShareFolderWidget> {
 class SharingDialog extends StatefulWidget {
   final Collection collection;
   final List<String> sharees;
+  final String path;
 
-  SharingDialog(this.collection, this.sharees, {Key key}) : super(key: key);
+  SharingDialog(this.collection, this.sharees, this.path, {Key key})
+      : super(key: key);
 
   @override
   _SharingDialogState createState() => _SharingDialogState();
@@ -116,8 +121,8 @@ class _SharingDialogState extends State<SharingDialog> {
         width: 220,
         child: button(
           "Add",
-          onPressed: () async {
-            await _addEmailToCollection(context);
+          onPressed: () {
+            _addEmailToCollection(context);
           },
         ),
       ));
@@ -173,14 +178,22 @@ class _SharingDialogState extends State<SharingDialog> {
         },
       );
     } else {
-      if (widget.collection == null) {
-        log("Collection is null");
-        // TODO: Create collection
-        // TODO: Add files to collection
+      final dialog = createProgressDialog(context, "Sharing...");
+      await dialog.show();
+      var collectionID;
+      if (widget.collection != null) {
+        collectionID = widget.collection.id;
+      } else {
+        collectionID =
+            (await CollectionsService.instance.getOrCreateForPath(widget.path))
+                .id;
+        await Configuration.instance.addPathToFoldersToBeBackedUp(widget.path);
+        SyncService.instance.sync();
       }
-      CollectionsService.instance
-          .share(widget.collection.id, _email, publicKey)
-          .then((value) {
+      return CollectionsService.instance
+          .share(collectionID, _email, publicKey)
+          .then((value) async {
+        await dialog.hide();
         setState(() {
           _sharees.add(_email);
           _showEntryField = false;